MBA FOR managing operration and information Essay

MBA FOR managing operration and information - Essay ExampleA pregnant advantage of the three-tiered model is that the business processing is done on a centrally controlled machine. This provides for increase security and in some case makes it possible to change the business processing logic in the middleware without making changes to the customer. Three-tiered architectures also provide better scalability and signifi bathroomt performance advantages for more complex applications, as MIT IS (2000) recommends.EPS includes one high-productive backend relational database server and a middleware server in each office, so subdue of middleware servers equals to six (the number of NHS offices). Communications between database server and middleware servers are provided via Internet using tunnelled TCP-IP channels. This technology provides high level of security and reliability and at the same time it allows to use of goods and services widely spread Internet connections. Middleware server is an application server, which runs software providing business logic of EPS. Also the server maintains website of appropriate NHSs office, so people washbowl receive public information about prescriptions and their treatment history via Internet. Middleware server software also receives queries from client desktops from the NHSs office, transfers them to database server and then delivers results of the queries to corresponding client desktop.There are a number of client desktops in each office connected to middleware server via client applications through local area net (LAN). In this way high-speed connection to the application server is achieved. Client software with appropriate user interface is launched on every client desktop.Doctors and patients can connect to the EPS through thin clients. A thin client is a computer (client) in client-server architecture networks, which has little or no application logic, so it has to depend primarily on the central server for processing activities. Therefore using standardized client software such